초록 ▼

A disc sander having a scroll type vane pump embodied in a shroud enclosing the back side of a sanding disc. The inlet ports of the pump are coupled by a manifold to a location adjacent to the front face of the sanding disc at a location where the sanding dust and debris are generated. A tortious se

A disc sander having a scroll type vane pump embodied in a shroud enclosing the back side of a sanding disc. The inlet ports of the pump are coupled by a manifold to a location adjacent to the front face of the sanding disc at a location where the sanding dust and debris are generated. A tortious serpentine path is provided about the periphery of the pump housing which reduces pump noise and increases pump efficiency. The fins of the vane pump are provided on the back side of the sanding disc.

대표청구항 ▼

[ What is claimed is:] [1.] A disc sander comprising:a base having a shroud, said shroud including a scroll type baffle forming a fan housing, the fan housing having at least one inlet port and an exit nozzle;an electric motor attached to said base, said electric motor having an output shaft extendi

[ What is claimed is:] [1.] A disc sander comprising:a base having a shroud, said shroud including a scroll type baffle forming a fan housing, the fan housing having at least one inlet port and an exit nozzle;an electric motor attached to said base, said electric motor having an output shaft extending normal to said shroud;a sanding disc attached to said shaft adjacent to said shroud, said sanding disc having a plurality of spaced apart fins extending into said fan housing and forming therewith a vane type pump; andan inlet manifold having an inlet disposed adjacent to a surface of said sanding disc on the side opposite said shroud and an outlet connected to said at least one inlet port to said fan housing the inlet manifold conducting an air flow from the region in front of the sanding disc on the side opposite the shroud into the fan housing.